On 24 May 2012, more than a year after the disaster, TEPCO released their estimate of radiation releases due to the Fukushima Daiichi Nuclear Disaster. An estimated 538,100 terabecquerels (TBq) of iodine-131, caesium-134 and caesium-137 was released. 520,000 TBq was released into the atmosphere between 12 to 31 March 2011 and 18,100 TBq into the ocean from 26 March to 30 September 2011. A total of 511,000 TBq of iodine-131 was released into both the atmosphere and the ocean, 13,500 TBq of caesium-134 and 13,600 TBq of caesium-137. In May 2012, TEPCO reported that at least 900 PBq had been released “into the atmosphere in March last year [2011] alone up from previous estimates of 360-370 PBq total.

In a leaked TEPCO report dated June 2011, it was revealed that plutonium-238, −239, −240, and −241 were released “to the air” from the site during the first 100 hours after the earthquake, the total amount of plutonium said to be 120 billion becquerels (120 GBq) — perhaps as much as 50 grams. The same paper mentioned a release of 7.6 trillion becquerels of neptunium-239 – about 1 milligram. As neptunium-239 decays, it becomes plutonium-239. TEPCO made this report for a press conference on 6 June, but according to Mochizuki of the Fukushima Diary website, the media knew and “kept concealing the risk for 7 months and kept people exposed”.

TEPCO has revised the readings on the radioactivity levels at the Fukushima No. 1 nuclear plant well to 5 million becquerels of strontium per liter – both a record, and nearly five times higher than the original reading of 900,000 becquerels per liter.

Strontium-90 is a radioactive isotope of strontium produced by nuclear fission with a half-life of 28.8 years. The legal standard for strontium emissions is 30 becquerels per liter. Exposure to strontium-90 can cause bone cancer, cancer of nearby tissues, and leukemia.

Tokyo Electric Power Co. originally said that the said 900,000 becquerels of beta-ray sources per liter, including strontium – were measured in the water sampled on July 5 last year.

However, the company noted on Friday that the previous radioactivity levels had been wrong, meaning that it was also likely reading taken from the other wells at the disaster-struck plant prior to September were also likely to have been inaccurate, the Asahi Shimbum newspaper reported.

Oct 1, 2013 – The operator of the crippled Fukushima nuclear plant said Tuesday workers … The company poured thousands of tonnes of water onto runaway reactors to keep them cool, and continues to douse them. ….Nanotechnology.

Save The Pacific Ocean

http://savethepacificocean.org

Save the Pacific Ocean is a non-profit organization focused on preserving and protecting the Pacific Ocean. Our mandate is to identify potential dangers to the environment and potential contaminants. We will assist by sourcing effective technologies, such as containment and filtering, and help implement accordingly to protect the marine environment.

Significant advances have been made in the field of nanotechnology. For example, new developments enable the clumping and gathering of radioactive materials such that contaminated water can be filtered, reduced, and contained in smaller quantities.

At this time, there is an urgent need for international collaboration to implement these technologies to assist Japan’s Tepco Corporation with controlling contaminated water from Fukushima reactors that are in critical status. Scientists have developed proven technologies for filtering contaminated radioactive water.

Together we can bring these and other technologies to the forefront. We commit to channeling 100% of our resources toward the protection of the environment and marine life. We welcome your participation in this effort and thank you for your support! spo dolphins

by Yagasaki Katsuma / The Asia-Pacific Journal / May 15, 2016 Yagasaki Katsuma, emeritus professor of Ryukyu University, has been constantly sounding the alarm about the problem of internal exposure related to nuclear weapons testing and nuclear electricity generation. Since the explosion at the Fukushima Daiichi nuclear power plant (NPP), he has drawn on his […]

via PNAS / April 2016 Significance Quantification of contamination risk caused by radioisotopes released from the Fukushima Dai-ichi nuclear power plant is useful for excluding or reducing groundless rumors about food safety. Our new statistical approach made it possible to evaluate the risk for aquatic food and showed that the present contamination levels of radiocesiums […]